Bicycle Chain Guide MTB Mountain Bike Chains Stabilizer Positive Negative Teeth Single Disc Protector

• Bike chain stabilizer can effectively prevent chain drop and chain jump
• High-quality aluminum alloy, fine workmanship, durable and wear-resistant
• Small in size and light in weight, it will not burden your riding
• Suitable for single disc to make riding more stable and enhance your riding experience
• Installation is simple and quick, suitable for mountain bikes, without disassembling the crank

Specifications:

• Model: Professional Type/ Simple Type (optional)
• Material: Aluminum Alloy + Nylon
• Applicable: For standpipes with a diameter of 31.8-34.9mm
• Item Size:
• Professional: 80*60*25mm/3.1*2.4*1.0in
• Simple: 105*55*20mm/4.1*2.2*0.8in
• Item Weight:
• Professional: 43g/1.5oz
• Simple30g/1.1oz